均匀人流风力机模型尾流特性实验研究  

Experimental Study of Characteristics of Wake of Wind Turbine Model in Uniform Inflow

作　　者：王胜军[1,2] 张明明[2,3] 徐建中[2,3] 

机构地区：[1]中国石油大学(华东),青岛266580 [2]中国科学院工程热物理研究所,北京100190 [3]中国科学院风能利用重点实验室,北京100190

出　　处：《工程热物理学报》2015年第8期1682-1686,共5页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.51222606);科技部863课题(No.2012AA051303);中央高校基本科研业务费专项资金资助(No.15CX02022A)

摘　　要：本文利用热线风速仪测量了低速风洞内均匀入流风况下风力机模型后不同流向位置处的尾流流场。通过分析平均速度和湍流强度廓线,可以发现随着远离转子,湍流强度和速度亏损逐渐减小,尾流区轴向速度逐渐增大。由于塔架塔影效应影响,转子下侧速度偏低,湍流强度偏大,因而不可忽略塔架对于小型风力机近尾流特性的影响。The wake field at different streamwise positions behind wind turbine model were measured with hot wire anemometer in low speed wind tunnel.The turbulence intensity and velocity deficit decreased when it was far away from the rotor and the axial velocity in wake zone would increase.The velocity was smaller and the turbulence intensity was greater in lower region of the rotor due to tower shadow effect and the effect of tower on wake effect could not be neglected.

关 键 词：均匀入流 风力机模型 风力机尾流 风洞试验 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]